Bioelectrical Impedance Analysis in the Diagnosis of Sarcopenia in Oncological Patients: The Sarco-Detect Study.

BACKGROUND/AIM: The Sarco-Detect study aim was to test the suitability of bioimpedance analysis (BIA) as a cost-efficient and practical alternative to computed tomography (CT) for diagnosing sarcopenia and to assess the agreement between CT and BIA. PATIENTS AND METHODS: In this study, the skeletal muscle cross-sectional area (SMA) was measured at the third lumbar vertebra (L3) on CT images, and the skeletal muscle index (SMI) was calculated. BIA skeletal muscle mass (SMM) and appendicular SMM (ASMM) were determined using the manufacturer's software (SMM-Seca, ASMM-Seca) and using the Sergi and Kyle equations. All calculated masses were converted to height-normalized index values and compared with the European Working Group on Sarcopenia in Older People cut-offs. RESULTS: the calculation of SMI-Seca and four patients with sarcopenia were not detected. CONCLUSION: The results indicate limited congruence of BIA and CT in the diagnosis of sarcopenia.